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It brightened up to 7.1 mag from May to June (June 21, Juan Jose Gonzalez). Now it is fading. But it is bright as 8.5 mag still now (July 26, Marco Goiato). In the Northern Hemisphere, it will be unobservable soon. In the Southern Hemisphere, it is observable in good condition after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 14 30.94 -33 50.2 1.409 1.787 93 9.0 18:47 ( 88, 75)
Aug. 12 14 39.71 -37 7.2 1.519 1.826 90 9.3 18:52 ( 76, 71)
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New bright comet discovered by the All-Sky Automated Survey for Supernovae (ASASSN). Now it is bright as 9.8 mag (July 23, Juan Jose Gonzalez). It is expected to brighten up to 7.5 mag in October. In the Northern Hemisphere, it stays observable in excellent condition for a long time. In the Southern Hemisphere, it is observable in good condition now. But it will be getting lower in September, and it will be unobservable for a long time after October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 2 59.82 -4 40.4 1.452 1.791 91 9.8 5:24 (200, 58)
Aug. 12 3 10.92 -1 45.6 1.344 1.742 94 9.6 5:18 (194, 56)
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Outburst occured on Apr. 4, and it brightened by 2 mag, up to 6.2 mag (Apr. 7, Juan Jose Gonzalez). Now it is fading. But it is bright as 11.2 mag still now (July 25, Chris Wyatt). It stays observable for a long time after this.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 3 33.58 22 55.0 1.672 1.733 75 10.0 5:24 (200, 29)
Aug. 12 3 42.09 23 12.8 1.678 1.815 80 10.2 5:18 (197, 30)
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Now it is bright as 10.6 mag (July 26, Marco Goiato). It is observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 17 4.31 -37 26.5 0.814 1.623 124 10.8 20:09 ( 0, 88)
Aug. 12 17 17.39 -37 40.1 0.868 1.638 120 10.9 19:55 ( 0, 87)
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Now it is bright as 12.2 mag (July 25, Chris Wyatt). It stays 12 mag until September. In the Southern Hemisphere, it stays at the same altitude in the morning sky. In the Northern Hemisphere, it will be getting higher slowly.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 4 58.20 11 27.4 1.443 1.260 58 11.8 5:24 (227, 30)
Aug. 12 5 21.73 11 48.3 1.452 1.281 59 11.8 5:18 (227, 29)
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Now it is 14.0 mag (July 28, Thomas Lehmann). It will stay bright as 10 mag for a long time from autum to next spring. In the Southern Hemisphere, it stays observable in good condition until next February. It is appearing in the morning sky also in the Northern Hemispehre. It stays observable for a long time after this until the comet fades out.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 5 4.68 -4 36.2 4.220 3.849 61 13.0 5:24 (241, 41)
Aug. 12 5 10.25 -4 13.4 4.092 3.800 66 12.9 5:18 (237, 44)
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Now it is bright as 13.2 mag (July 25, Chris Wyatt).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 21 26.02 -13 52.6 4.819 5.828 172 13.2 0:33 (180, 69)
Aug. 12 21 22.70 -14 2.1 4.813 5.826 178 13.2 0:02 (180, 69)
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Now it is 14.2 mag (July 6, Ken-ichi Kadota). It will brighten up to 13-14 mag and will be observable in good condition in summer.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 22 33.43 10 43.9 1.846 2.731 143 13.5 1:41 (180, 44)
Aug. 12 22 8.31 8 26.3 1.777 2.726 154 13.4 0:49 (180, 46)
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Now it is bright as 13.5 mag (July 5, Chris Wyatt). It was expected to brighten up to 12 mag in summer. But actually, it is fainter than expected. It is observable in excellent condition in the Southern Hemisphere. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 18 50.15 -28 1.3 1.088 2.022 148 13.5 21:54 (180, 83)
Aug. 12 18 48.54 -26 59.5 1.118 2.012 141 13.5 21:24 (180, 82)
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Now it is 15.0 mag (July 7, Ken-ichi Kadota). In the Northern Hemisphere, it will brighten up to 14 mag from summer to winter, and it will be observable in excellent condition. It is not observable at all after this in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 0 31.64 56 36.8 2.989 3.225 94 14.0 3:38 (180, -2)
Aug. 12 0 22.95 59 33.5 2.927 3.217 97 13.9 3:02 (180, -5)
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Now it is 14.1 mag (June 30, Chris Wyatt). It stays 14 mag from spring to summer. It locates somewhat low in the Northern Hemisphere. The perihelion distance increased from 2.4 a.u. to 2.9 a.u. in this apparition. So it will not be bright as before.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 15 48.17 -23 20.2 2.465 2.933 107 14.4 18:52 (180, 78)
Aug. 12 15 52.17 -23 41.7 2.550 2.929 101 14.4 18:52 (155, 78)
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Now it is 14.4 mag (July 7, Ken-ichi Kadota). It will be observable at 14 mag for a long time from 2017 to 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 16 37.24 23 21.5 3.751 4.119 104 14.5 19:40 (180, 32)
Aug. 12 16 29.71 23 1.2 3.827 4.094 98 14.5 19:05 (180, 32)
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It has not been observed yet in this apparition. The condition of this apparition is worst. It must have brightened up to 10 mag in spring, but it is not observable at all.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 8 37.83 9 38.3 2.724 1.730 9 14.7 5:24 (265, -9)
Aug. 12 8 54.53 8 21.3 2.780 1.792 10 15.1 5:18 (265, -8)
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Now it is 15.3 mag (July 8, Ken-ichi Kadota). It is expected to brighten up to 9 mag in summer in 2018. In the Northern Hemisphere, it stays observable until 2018 summer while the comet will be brightening. In the Southern Hemisphere, it is hardly observable in 2017, but it will be observable in good condition in 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 17 17.79 46 19.8 4.224 4.501 99 15.2 20:21 (180, 9)
Aug. 12 17 12.55 44 26.6 4.201 4.443 97 15.1 19:48 (180, 11)
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Now it is 15.8 mag (July 8, Ken-ichi Kadota). It is expected to brighten up to 11-12 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition while the comet will be brightening gradually. In the Southern Hemisphere, it is not observable until 2018 October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 15 14.95 58 2.4 4.475 4.370 77 15.4 18:47 (176, -3)
Aug. 12 15 7.74 56 56.4 4.472 4.319 74 15.3 18:52 (171, -3)
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Now it is 18.8 mag (July 17, Mike Olason). Return of a new periodic comet which brightened up to 13 mag in 2004. It will be observable in excellent condition in autumn. It is expected to brighten up to 14 mag, if the comet is as bright as when it was discovered. But actually, it is not brightening as expected.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 1 54.01 -3 3.5 1.259 1.830 106 15.6 5:00 (180, 58)
Aug. 12 2 4.71 -2 12.0 1.186 1.809 110 15.4 4:43 (180, 57)
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Now it is 16.7 mag (July 18, Ken-ichi Kadota). It stays observable at 16 mag unil the end of 2017.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 3 29.18 4 25.8 5.847 5.789 81 15.5 5:24 (207, 47)
Aug. 12 3 32.13 4 12.5 5.769 5.815 87 15.5 5:18 (200, 49)
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Now it is 15.4 mag (July 26, Toshiyuki Takahashi). It stays observable at 16 mag for a long time from 2017 to 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 2 41.14 30 8.3 4.374 4.411 85 15.6 5:24 (186, 25)
Aug. 12 2 38.05 29 39.3 4.230 4.397 92 15.6 5:17 (180, 25)
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First return of a new periodic comet discovered in 2000. Now it is 17.3 mag (July 17, Mike Olason). It will brighten rapidly, and it is expected to be observable at 15.5 mag in good condition from July to September. But actually, it is fainter than this ephemeris.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 1 16.06 -10 5.0 1.930 2.564 117 15.7 4:22 (180, 65)
Aug. 12 1 17.46 -9 39.0 1.871 2.573 123 15.7 3:56 (180, 65)
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Now it is 16.5 mag (July 26, Toshiyuki Takahashi). It was observed at 17 mag in 2016. In 2017, it will be observable at 15.5 mag in good condition from summer to autumn.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 1 39.45 13 26.1 2.405 2.837 104 15.8 4:46 (180, 41)
Aug. 12 1 42.06 14 16.3 2.325 2.841 110 15.8 4:21 (180, 41)
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Now it is 15.7 mag (July 18, Ken-ichi Kadota). It stays 16 mag for a long time until summer in 2018. In the Southern Hemisphere, it stays observable in excellent condition until autumn. It locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 16 44.50 -32 41.2 2.420 3.067 120 15.8 19:49 (180, 88)
Aug. 12 16 46.96 -31 55.2 2.466 3.033 114 15.8 19:24 (180, 87)
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Now it is 17.0 mag (May 29, iTelescope Observatory, Siding Spring). It will brighten up to 14.5 mag in winter. In the Southern Hemisphere, it stays observable in excellent condition until spring in 2018. In the Northern Hemisphere, it stays unobservable until 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 1 58.94 -74 23.9 2.152 2.681 110 15.9 5:04 ( 0, 51)
Aug. 12 2 21.11 -75 47.4 2.124 2.629 108 15.8 4:58 ( 0, 49)
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Now it is 19.7 mag (Apr. 27, iTelescope Observatory, Siding Spring). It will pass the perihelion on Oct. 27. In the Southern Hemisphere, it stays observable while the comet will be brightening, until early October when the comet will brighten up to 9 mag. In the Northern Hemisphere, it is not observable at all in this apparition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 18 56.64 -81 48.4 1.177 1.840 114 16.2 21:51 ( 0, 43)
Aug. 12 16 29.19 -80 55.5 1.143 1.738 107 15.9 19:01 ( 0, 44)
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Now it is 16.8 mag (July 6, CAO, San Pedro de Atacama). It will brighten up to 16 mag in summer. It will be observable in excellent condition in the Southern Hemisphere. It will be getting higher gradually in the morning sky also in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 21 41.43 -30 13.9 1.507 2.497 163 16.4 0:49 (180, 85)
Aug. 12 21 33.98 -28 36.9 1.509 2.505 166 16.4 0:14 (180, 84)
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Now it is 16.3 mag (July 7, Ken-ichi Kadota). It stays 16 mag from 2016 to 2017. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it will never be observable again.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 17 56.51 65 52.1 6.368 6.453 90 16.5 20:59 (180,-11)
Aug. 12 17 52.42 65 35.2 6.385 6.465 90 16.5 20:27 (180,-11)
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Now it is 18.4 mag (May 31, iTelescope Observatory, Siding Spring). It will brighten rapidly, up to 15 mag in autumn, and will be observable in good condition in the Northern Hemisphere. It locates low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 3 33.93 18 46.6 1.878 1.920 76 16.7 5:24 (202, 33)
Aug. 12 3 48.31 20 13.9 1.810 1.913 79 16.5 5:18 (199, 32)
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Hilda-type minor planet, but the cometary activity was detected on July 3. Now it is bright as 16.5 mag (July 3, G. J. Leonard).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 21 11.87 2 43.8 2.381 3.353 160 16.6 0:19 (180, 52)
Aug. 12 21 7.49 2 7.0 2.390 3.369 162 16.7 23:43 (180, 53)
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Now it is 17.6 mag (June 30, ATLAS-MLO, Mauna Loa). It brightens up to 16.5-17 mag in August, and it will be observable in good condition.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 16 26.61 -4 53.7 0.386 1.213 112 16.8 19:32 (180, 60)
Aug. 12 16 50.34 0 4.1 0.408 1.216 110 16.8 19:28 (180, 55)
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It brightened up to 11 mag from spring to summer in 2016. Now it is 17.4 mag (July 14, Ken-ichi Kadota). It stays observable for a long time after this, but it will be fainter than 18 mag in October.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 19 45.72 -19 56.0 2.450 3.430 162 16.8 22:49 (180, 75)
Aug. 12 19 40.78 -20 13.8 2.524 3.465 154 17.0 22:16 (180, 75)
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It brightened up to 7.2 mag in spring (Mar. 24, Marco Goiato). Now it is 16.9 mag (June 2, T. Ikemura, H. Sato). It will be fainter than 18 mag in late August. It is observable in good condition in the Southern Hemisphere. It locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 20 59.28 -25 55.2 1.298 2.306 171 16.9 0:07 (180, 81)
Aug. 12 20 45.00 -26 13.6 1.377 2.371 165 17.3 23:20 (180, 81)
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It brightened up to 11 mag from March to April. Now it is fading. It has faded down to 12.7 mag in late May (May 26, iTelescope Observatory, Siding Spring). No observations have been reported after that.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 4 5.80 7 22.4 2.175 2.099 72 17.0 5:24 (216, 41)
Aug. 12 4 12.40 6 57.3 2.177 2.188 77 17.3 5:18 (212, 43)
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It will pass the perihelion in 2019. However, it has not been brightening since the discovery in 2010. It will be getting higher gradually in the morning sky in the Northern Hemisphere. It is not observable for a long time in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 6 2.73 64 21.6 9.617 9.088 55 17.2 5:24 (202,-19)
Aug. 12 6 10.03 64 51.6 9.541 9.073 59 17.2 5:18 (201,-18)
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It brightened up to 11.5 mag from late March to early April (Mar. 24, Andrew Pearce). Now it is fading. It has already faded down to 17.8 mag (June 30, CAO, San Pedro de Atacama). Bright 12-mag new fragment BT was discovered on Feb. 10, but now it is faint as 18.9 mag (June 2, CAO, San Pedro de Atacama). It will be fainter than 18 mag in September.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 3 5.81 6 45.4 1.799 2.013 86 17.2 5:24 (197, 47)
Aug. 12 3 10.21 6 52.4 1.772 2.074 92 17.4 5:18 (191, 47)
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Now it is 17.9 mag (June 2, MASTER-OAFA Observatory). It will brighten up to 14 mag from autumn to winter in 2018, and it will be observable in excellent condition in the Northern Hemisphere. In 2017, it is observable at 17 mag in excellent condition in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 0 23.58 -43 39.8 3.532 4.252 129 17.4 3:30 ( 0, 81)
Aug. 12 0 19.74 -44 21.7 3.452 4.211 133 17.3 2:59 ( 0, 81)
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Now it is 17.4 mag (July 20, Yuji Ohshima). It is expected to brighten up to 13-14 mag from 2018 to 2019. In the Northern Hemisphere, it stays observable in good condition for a long time. In the Southern Hemisphere, it is not observable until summer in 2018.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 19 55.30 70 2.5 5.625 5.754 92 17.4 22:56 (180,-15)
Aug. 12 19 37.48 69 18.2 5.555 5.707 93 17.3 22:11 (180,-14)
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Now it is 17.9 mag (May 27, T. Ikemura, H. Sato). It will be brightening slowly until autumn when it becomes 16.5-17 mag. It will be getting lower gradually in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 14 32.16 -14 30.0 2.100 2.296 87 17.4 18:47 (138, 64)
Aug. 12 14 39.62 -15 21.4 2.152 2.265 83 17.4 18:52 (126, 61)
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Now it is 16.7 mag (June 27, Hidetaka Sato). It will fade out after this, and it will be fainter than 18 mag in August.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 17 44.25 27 8.6 3.396 3.936 115 17.6 20:47 (180, 28)
Aug. 12 17 43.48 26 44.7 3.487 3.973 111 17.7 20:19 (180, 28)
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Now it is 18.3 mag (June 20, P. Camilleri, H. Williams). It stays observable at 18 mag from spring to summer. It is observable in excellent condition in the Southern Hemisphere. It locates low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 22 17.17 -34 16.8 4.618 5.558 155 17.8 1:24 (180, 89)
Aug. 12 22 13.21 -34 13.0 4.628 5.582 158 17.8 0:53 (180, 89)
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It approached to Earth down to 0.14 a.u. from late March to early April, and it brightened up to 6.0 mag (Apr. 7, Juan Jose Gonzalez). Now it is fading. It has already faded down to 12.1 mag (July 17, Thomas Lehmann).
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 18 15.31 -14 57.7 0.860 1.764 140 17.8 21:19 (180, 70)
Aug. 12 18 19.69 -16 21.0 0.961 1.825 135 18.5 20:56 (180, 71)
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Peculiar asteroid moving along a comet-like orbit. Now it is 18.0 mag (June 26, ATLAS-MLO, Mauna Loa). It is observable at 18 mag in good condition from July to August. It locates somewhat low in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 21 9.68 -23 1.6 2.217 3.228 173 17.8 0:17 (180, 78)
Aug. 12 20 58.44 -21 30.4 2.235 3.239 170 17.9 23:33 (180, 76)
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Peculiar asteroid moving along a comet-like orbit. In the Southern Hemisphere, it is observable at 18 mag in good condition from July to August. It is not observable in the Northern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 1 28.54 -39 54.2 0.982 1.713 118 18.2 4:36 ( 0, 85)
Aug. 12 0 32.15 -48 38.7 0.905 1.736 129 17.9 3:13 ( 0, 77)
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Peculiar asteroid moving along a comet-like orbit. It is observable at 18 mag in good condition from August to September. It locates somewhat low in the Southern Hemisphere.
Date(TT) R.A. (2000) Decl. Delta r Elong. m1 Best Time(A, h)
Aug. 5 22 45.49 16 49.3 2.960 3.769 137 18.0 1:52 (180, 38)
Aug. 12 22 42.45 17 18.3 2.911 3.767 142 17.9 1:22 (180, 38)
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